124813690 has 8 divisors (see below), whose sum is σ = 224664660. Its totient is φ = 49925472.

The previous prime is 124813631. The next prime is 124813699. The reversal of 124813690 is 96318421.

It can be written as a sum of positive squares in 2 ways, for example, as 117700801 + 7112889 = 10849^2 + 2667^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×124813690² = 31156914422832200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (124813699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6240675 + ... + 6240694.

Almost surely, 2^124813690 is an apocalyptic number.

124813690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

124813690 is a deficient number, since it is larger than the sum of its proper divisors (99850970).

124813690 is a wasteful number, since it uses less digits than its factorization.

124813690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12481376.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 124813690 is about 11172.0047440019. The cubic root of 124813690 is about 499.7514631460.

The spelling of 124813690 in words is "one hundred twenty-four million, eight hundred thirteen thousand, six hundred ninety".